B1S1 very different reading from B2S1
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TECH Enthusiast
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From: East Tennessee
B1S1 very different reading from B2S1 Bank one and two O2 sensors give me very different readings. The average for B1 is about .74 and for B2 .93. Before I richened it up with MAFT it was .64 for B1 and .82 for B2. Any ideas? I am not getting any codes for the sensors and they seem to be flucuating as should be.
Teching In
Joined: Apr 2002
Posts: 33
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From: Blue Springs, MO (KC suburb)
Re: B1S1 very different reading from B2S1 </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by FlamnTA:
<strong>Bank one and two O2 sensors give me very different readings. The average for B1 is about .74 and for B2 .93. Before I richened it up with MAFT it was .64 for B1 and .82 for B2. Any ideas? I am not getting any codes for the sensors and they seem to be flucuating as should be.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I think you have an air leak in the exhaust header (or flange) on bank 2.
<strong>Bank one and two O2 sensors give me very different readings. The average for B1 is about .74 and for B2 .93. Before I richened it up with MAFT it was .64 for B1 and .82 for B2. Any ideas? I am not getting any codes for the sensors and they seem to be flucuating as should be.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I think you have an air leak in the exhaust header (or flange) on bank 2.
Staging Lane
Joined: May 2002
Posts: 62
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From: IL
Re: B1S1 very different reading from B2S1 I have the same problem one senser reads diffrent from the other. I havent had time to check into it but i was thinking a lazy o2 senser. it work but not right. I wonder if you should change them in pairs because i burnt one out and i put in a used one it works but not the same readings from left to right
Teching In
Joined: Jul 2002
Posts: 21
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From: Sugarcreek, OH
Re: B1S1 very different reading from B2S1 I have the same problem. It happened after header install. My one is .6x and the other is .9x. I think the side with the lower # has a leak before the O2.
